公开(公告)号：US06276923B1

公开(公告)日：2001-08-21

申请号：US09551521

申请日：2000-04-17

申请人： Hiroyuki Shingai ,  Yukihide Umeda

发明人： Hiroyuki Shingai ,  Yukihide Umeda

IPC分类号： B29C4544

CPC分类号： B29C45/33 ,  B29L2031/087 ,  F04D29/023 ,  F04D29/325 ,  F05D2230/53 ,  F05D2300/43 ,  Y10S425/058

摘要： This invention provides a compact, flat axial fan which is not limited by the shape of an incorporated rotor magnet and ensures a sufficiently large air flow and wind pressure, wherein the slide (under) piece of a mold that forms the under-molding portions of the vanes of the impeller of the axial fan is pulled out while being twisted (while performing a helical motion) in the direction of central axis of the base portion of the impeller, so that the mold can be formed simple to realize a multi-cavity mold, and the vanes can be formed into an ideal form by setting vane angles depending on different rotating peripheral velocities of the vanes, so that air can be supplied form the under-molding portions of the vanes to the vanes on the outer circumferential side during rotation of the impeller, a method of manufacturing an impeller for the axial fan, and a mold for manufacturing the impeller of the axial fan. For this purpose, in an axial fan comprising an impeller integrally formed, by resin molding, with a plurality of vanes extending from a bottomed cylindrical body to which a rotary axial support shaft body is formed at a center of rotation, each of the vanes is integrally formed by resin molding with a main vane extending from an outer circumferential surface of the bottomed cylindrical body at a predetermined tilt angle.

摘要翻译： 本发明提供一种紧凑的扁平轴流风扇，其不受所结合的转子磁体的形状的限制，并且确保足够大的气流和风压，其中，形成下模塑部分的模具的滑动（下） 轴向风扇的叶轮的叶片在沿着叶轮的基部的中心轴的方向扭转（同时进行螺旋运动）的同时被拉出，使得可以简单地形成模具以实现多腔体 模具，并且叶片可以通过根据叶片的不同旋转圆周速度设定叶片角度而形成为理想形式，使得空气可以从叶片的下模部分供应到外周侧的叶片上 叶轮的旋转，制造用于轴流风扇的叶轮的方法，以及用于制造轴流风扇的叶轮的模具。 为此，在通过树脂成形的一体形成的叶轮的轴流风扇中，在从旋转中心向旋转轴向支撑轴体形成有底圆筒状体的多个叶片中，各叶片为 通过树脂模制一体地形成有主叶片，该主叶片从有底筒状体的外周面以预定的倾斜角度延伸。

公开(公告)号：US06065936A

公开(公告)日：2000-05-23

申请号：US62644

申请日：1998-04-20

申请人： Hiroyuki Shingai ,  Yukihide Umeda

发明人： Hiroyuki Shingai ,  Yukihide Umeda

IPC分类号： F04D29/38 ,  B29C45/14 ,  B29C45/26 ,  B29C45/33 ,  B29C45/56 ,  F04D29/02 ,  F04D29/32

CPC分类号： B29C45/33 ,  F04D29/023 ,  F04D29/325 ,  B29L2031/087 ,  F05D2230/53 ,  F05D2300/43 ,  Y10S425/058

摘要： This invention provides a compact, flat axial fan which is not limited by the shape of an incorporated rotor magnet and ensures a sufficiently large air flow and wind pressure, wherein the slide (under) piece of a mold that forms the under-molding portions of the vanes of the impeller of the axial fan is pulled out while being twisted (while performing a helical motion) in the direction of central axis of the base portion of the impeller, so that the mold can be formed simple to realize a multi-cavity mold, and the vanes can be formed into an ideal form by setting vane angles depending on different rotating peripheral velocities of the vanes, so that air can be supplied form the under-molding portions of the vanes to the vanes on the outer circumferential side during rotation of the impeller and a method of manufacturing an impeller for the axial fan. For this purpose, in an axial fan comprising an impeller integrally formed, by resin molding, with a plurality of vanes extending from a bottomed cylindrical body to which a rotary axial support shaft body is formed at a center of rotation, each of the vanes is integrally formed by resin molding with a main vane extending from an outer circumferential surface of the bottomed cylindrical body at a predetermined tilt angle.

摘要翻译： 本发明提供一种紧凑的扁平轴流风扇，其不受所结合的转子磁体的形状的限制，并且确保足够大的气流和风压，其中，形成下模塑部分的模具的滑动（下） 轴向风扇的叶轮的叶片在沿着叶轮的基部的中心轴的方向扭转（同时进行螺旋运动）的同时被拉出，使得可以简单地形成模具以实现多腔体 模具，并且叶片可以通过根据叶片的不同旋转圆周速度设定叶片角度而形成为理想形式，使得空气可以从叶片的下模部分供应到外周侧的叶片上 叶轮的旋转和用于轴流风扇的叶轮的制造方法。 为此，在通过树脂成形的一体形成的叶轮的轴流式风扇中，在从旋转中心向旋转轴向支撑轴体形成有底圆筒状体的多个叶片上形成有叶片， 通过树脂模制一体地形成有主叶片，该主叶片从有底筒状体的外周面以预定的倾斜角度延伸。